Miles Teller Rescues Pregnant Woman From Riptide

Fantastic Four star Miles Teller was enjoying the beach in Miami with his girlfriend, Keleigh Sperry, on Friday, when he sprang into action to help a pregnant woman and her young daughter caught in a riptide.

Miles and Keleigh were already in the water when the actor noticed the woman in distress, a source tells ET. The woman couldn't get to the shore because of the strong riptide, and went under the water. Miles then grabbed the hand of the woman -- who had her daughter on her back -- and brought them to safety. Check out the toned 28-year-old grabbing her hand and pulling her out of the scary situation.

"She came up to us freaking out telling us to not freak out but it was a shark," she wrote on Monday. "And the scariest moment ever hahah poor lady. :(( pregnant with a toddler on her back."

Miles -- who plays Mr. Fantastic in the Fantastic Four reboot hitting theaters in August -- is currently filming Arms and the Dudes in Miami alongside Jonah Hill. The film tells the true story of two men who were contracted by the Pentagon to arm America's allies in Afghanistan.